<pre>
<?php
	echo "\n IF ";
	
	$a = 0;
	if ($a == 1) 
		echo $a;
	else
		echo $a." still not 1";
		
	echo "\n FOR ";
	
	for ($i = 0; $i < 10; $i++)
		echo "$i: " . $i * 2 . "; ";
	
	echo "\n WHILE ";
	
	$a = 1;
	while ($a > 1) {
		echo $a . " ";
		$a--;
	}
	
	echo "\n DO .. WHILE ";
	
	$a = 1;
	do {
		echo $a . " ";
		$a--;
	} while ($a > 1)
	
	
?>
</pre>